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Water in the lower unit
#11197510
10/31/15 05:57 PM
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Joined: Apr 2008
Posts: 12,330
PaulGrapevine
OP
TFF Guru
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OP
TFF Guru
Joined: Apr 2008
Posts: 12,330 |
Went to change out my lower unit fluid this week. It came out milky green. Never had this problem before. How hard is it to put new seals on one? Always done my one water pumps, carbs, fuel lines and about anything else needed. Can't decide if I want to tackle it or pull it off and take it somewhere. Motor is a 1977 Johnson 175. Thanks in advance for any input.
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Re: Water in the lower unit
[Re: PaulGrapevine]
#11198816
11/01/15 12:32 PM
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Joined: Mar 2004
Posts: 1,960
sbump26
Extreme Angler
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Extreme Angler
Joined: Mar 2004
Posts: 1,960 |
Mine leaks a little too. I use a good synthetic gear lube that doesn't seem to allow the water to mix. I will drain off the water after it has a chance to settle to the bottom (water is the first thing that comes out on mine). I drain off the cup or so of water and add gear lube back. When it gets down to the teens temperature wise I will drain it all out and refill later. I also change it all out twice a season between March and September. I always use new nylon washers every time I open a screw. I need to get some more, thanks for reminding me!
Put the plug in.
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Re: Water in the lower unit
[Re: PaulGrapevine]
#11198830
11/01/15 12:43 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
You will have to find out where your leak is. Requires pressure testing with a special tool. Most common is the prop seals. Inspect the prop seals for signs of leaking or damage. Other than that the only choice is to replace all of the seals.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: Water in the lower unit
[Re: sbump26]
#11198867
11/01/15 01:21 PM
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Joined: Apr 2008
Posts: 12,330
PaulGrapevine
OP
TFF Guru
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OP
TFF Guru
Joined: Apr 2008
Posts: 12,330 |
Mine leaks a little too. I use a good synthetic gear lube that doesn't seem to allow the water to mix. I will drain off the water after it has a chance to settle to the bottom (water is the first thing that comes out on mine). I drain off the cup or so of water and add gear lube back. When it gets down to the teens temperature wise I will drain it all out and refill later. I also change it all out twice a season between March and September. I always use new nylon washers every time I open a screw. I need to get some more, thanks for reminding me! What type of oil are you using? Thought about doing something similar at least until I can get it fixed.
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Re: Water in the lower unit
[Re: gary purdy]
#11198870
11/01/15 01:24 PM
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Joined: Apr 2008
Posts: 12,330
PaulGrapevine
OP
TFF Guru
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OP
TFF Guru
Joined: Apr 2008
Posts: 12,330 |
You will have to find out where your leak is. Requires pressure testing with a special tool. Most common is the prop seals. Inspect the prop seals for signs of leaking or damage. Other than that the only choice is to replace all of the seals. Thanks for the input. Will check the prop shaft. The motor still has all original seals in it. I figure 37 years was a good run. You know about what it runs to get new seals put in one? If I pull the lower unit and reinstall it.
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Re: Water in the lower unit
[Re: PaulGrapevine]
#11198996
11/01/15 02:28 PM
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Joined: Jan 2005
Posts: 16,644
Pat Goff
TFF Guru
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TFF Guru
Joined: Jan 2005
Posts: 16,644 |
Keep running it with water in it. Those gears aren't stainless, they'll start to corrode, and that will pretty much be their doom.
Fix it before you run it anymore, you haven't found some miracle cure, you've been lucky.
Pat Goff Seadrift TX
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Re: Water in the lower unit
[Re: PaulGrapevine]
#11199298
11/01/15 05:27 PM
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Joined: Nov 2012
Posts: 806
JimmyP
Pro Angler
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Pro Angler
Joined: Nov 2012
Posts: 806 |
Unless you wanna pop for a new lower unit you need to take it off and get it fixed. Water diluted oil will not lube it correctly and will allow the gears and bearings to corrode. Bearings don't last long when they get rust pits in them. You can pay em a little now or pay em a lot later, it's your choice.
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Re: Water in the lower unit
[Re: PaulGrapevine]
#11199670
11/01/15 09:12 PM
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Joined: Apr 2008
Posts: 12,330
PaulGrapevine
OP
TFF Guru
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OP
TFF Guru
Joined: Apr 2008
Posts: 12,330 |
Thanks for the input guys. Going to put a new set of seals in it. Got a pm from someone local that can help me out.
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